WL 929 throttle problem

[TWE75]

Hi guys , i got a WL 929 and yesterday when i first bring it downstair to play , i found that the throttle stick is stable only til 50% . Anymore then that will send the quad going up non stop even if the throttle stick is left at 51% . Unless i bring the throttle stick back to 49% then it will come down , but ( here comes the other problem ) once it hit the floor ( i did the cable tie stuff on the 4 legs ) it will bounce non stop regardless of the throttle % . The only time it is stable is only when hovering . Otherwise it's altitude tend to go up and down . I open up the tx today and found 2 pins of a small ic chip shorted , i wonder if its supposed to be shorted or not . I attached the pictures to understand better . . I took the pictures from my hp , sorry if its too big .

[FyreSG]

Hi, where is the short circuit? In any case, I can pass you my extra E728 transmitter to troubleshoot.

[TWE75]

Its at the black chip above C13 . There is a short between 2 pins shorted by solder .

[vuzix_sg]

Its difficult to see from the angle of the photo but it looks like all 4 pins on the right-hand side of the chip are connected to the same PCB track.

[Super-Hornet]

That 8 legged chip u referring to (SOP8/TSSOP8), is a EEPROM chip.
Here is the info:

http://www.lizhiic.com/Products_show.asp?id=14&MaxID=12&MinID=28

Characteristic PDF file:

http://www.lizhiic.com/admin/Product20/L24C02B%20L24C04%20L24C08B%20L24C16%20SPEC%20V2_0.pdf

I maybe wrong but by looking closely the picture, it looks like it is shorted on purpose. That mean, the A2 address pin is pull to ground.

But looking at the picture, the 2 wires on top...looks like "VCC" and Ground (Power supply wires?) that is poorly soldered. They will either shorted together easily or break off easily.

EDIT:
Looking at the 1st picture, it looks like a 4 pins are shorted together...based on the PCB routing. That mean, all A0 to A2 address is pull to ground. That mean, the address is fixed/designed to be always in "000"

[TWE75]

Wow superhornet , you're really good . I did attempted to reheat the solder on the pcb but as i don't have a proper heatgun , i used a mini torch . And it actually crack up the pcb at a certain location . Its not as visible after cooling off . I don't mind resoldering the vcc wires but really worry abt the pcb cracking up again . Looks like walkera has really sucky soldering quality ( maybe that explains for the cheap price ) . Well , should i just get another tx to use ? But got to try with fyresg first to confirm is my tx problem tonight . Here's a more obvious picture of the shorting .

The shorting is circled in red .

[FyreSG]

If you happen to have a 9X transmitter, it'll be a great upgrade over the stock E728. Seeya tonight!